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Andrew Loetz
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West Lafayette, IN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Engine system configured for unburned hydrocarbon (HC) collection f...
Patent number
12,158,121
Issue date
Dec 3, 2024
Caterpillar Inc.
Andrew Joseph Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Piston and engine system using same
Patent number
12,146,452
Issue date
Nov 19, 2024
Caterpillar Inc.
Aaron Ness
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Gaseous fuel engine operating strategy for improved derating perfor...
Patent number
12,104,546
Issue date
Oct 1, 2024
Caterpillar Inc.
Andrew Joseph Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Piston optimized for combustion flame speed and compression ratio i...
Patent number
12,037,961
Issue date
Jul 16, 2024
Caterpillar Inc.
Aaron Ness
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Gaseous fuel reciprocating engine and operating methodology for red...
Patent number
11,959,414
Issue date
Apr 16, 2024
Caterpillar Inc.
Eric Lee Schroeder
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Low compression natural gas engine piston bowl for improved combust...
Patent number
11,840,983
Issue date
Dec 12, 2023
Caterpillar Inc.
Aaron S. Ness
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Gaseous fuel engine and operating strategy for limiting preignition...
Patent number
11,773,795
Issue date
Oct 3, 2023
Caterpillar Inc.
Jaswinder Singh
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Prechamber fluid injection
Patent number
11,047,341
Issue date
Jun 29, 2021
Caterpillar Inc.
Andrew J. Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Natural gas fuel reformer control for lean burn gas engines
Patent number
10,815,912
Issue date
Oct 27, 2020
Caterpillar Inc.
Deepti Bhosekar
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Vented pre-chamber assembly for an engine
Patent number
10,724,423
Issue date
Jul 28, 2020
Caterpillar Inc.
Andrew Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Leak detection tool
Patent number
10,545,066
Issue date
Jan 28, 2020
Caterpillar Inc.
Nicholas Edwin Wainscott
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Control system for an engine cylinder with fuel control of pre cham...
Patent number
9,903,264
Issue date
Feb 27, 2018
Caterpillar Inc.
Mary Louise Yeager
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
Information
Patent Application
LOW COMPRESSION NATURAL GAS ENGINE PISTON BOWL FOR IMPROVED COMBUST...
Publication number
20240093659
Publication date
Mar 21, 2024
Caterpillar Inc.
Aaron S. Ness
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
GASEOUS FUEL ENGINE OPERATING STRATEGY FOR IMPROVED DERATING PERFOR...
Publication number
20240068418
Publication date
Feb 29, 2024
Caterpillar Inc.
Andrew Joseph Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ENGINE SYSTEM CONFIGURED FOR UNBURNED HYDROCARBON (HC) COLLECTION F...
Publication number
20240068425
Publication date
Feb 29, 2024
Caterpillar Inc.
Andrew Joseph Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
GASEOUS FUEL RECIPROCATING ENGINE AND OPERATING METHODOLOGY FOR RED...
Publication number
20230304436
Publication date
Sep 28, 2023
Caterpillar Inc.
Eric Lee Schroeder
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
LOW COMPRESSION NATURAL GAS ENGINE PISTON BOWL FOR IMPROVED COMBUST...
Publication number
20230265810
Publication date
Aug 24, 2023
Caterpillar Inc.
Aaron S. Ness
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
PRECHAMBER FLUID INJECTION
Publication number
20200149498
Publication date
May 14, 2020
Caterpillar Inc.
Andrew J. Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
VENTED PRE-CHAMBER ASSEMBLY FOR AN ENGINE
Publication number
20180230894
Publication date
Aug 16, 2018
Caterpillar Inc.
Andrew Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
LEAK DETECTION TOOL
Publication number
20180172543
Publication date
Jun 21, 2018
Caterpillar Inc.
Nicholas Edwin Wainscott
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
NATURAL GAS FUEL REFORMER CONTROL FOR LEAN BURN GAS ENGINES
Publication number
20180030907
Publication date
Feb 1, 2018
Caterpillar Inc.
Deepti Bhosekar
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
MULTIPLE PRECHAMBERS WITH INTERACTING JETS
Publication number
20170101923
Publication date
Apr 13, 2017
Caterpillar Inc.
Andrew Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
PRECHAMBER INSERT FOR AN INTERNAL COMBUSTION ENGINE
Publication number
20170101922
Publication date
Apr 13, 2017
Caterpillar Inc.
Andrew Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
PRECHAMBER INTERNAL REFORMER CATALYST
Publication number
20170101967
Publication date
Apr 13, 2017
Caterpillar Inc.
Andrew Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
IGNITION PLUGS IN PRECHAMBER AND MAIN COMBUSTION CHAMBER OF AN IC E...
Publication number
20170089252
Publication date
Mar 30, 2017
Caterpillar Inc.
Andrew Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
FUEL CONTROL SYSTEM
Publication number
20160237942
Publication date
Aug 18, 2016
Caterpillar Inc.
Scott Byron Fiveland
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Engine Piston
Publication number
20160169152
Publication date
Jun 16, 2016
Caterpillar Inc.
Lucas Burger
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
PRESSURE-LIMITING DEVICE FOR PRE-COMBUSTION CHAMBER
Publication number
20160069251
Publication date
Mar 10, 2016
Caterpillar Inc.
Andrew J. Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
CONTROL VALVE FOR PRE-COMBUSTION CHAMBER ASSEMBLY
Publication number
20160069250
Publication date
Mar 10, 2016
Caterpillar Inc.
Andrew J. Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
PRE-COMBUSTION CHAMBER WITH NOx REDUCING CATALYST
Publication number
20160061096
Publication date
Mar 3, 2016
Caterpillar Inc.
Andrew J. Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
FUEL INJECTION SYSTEM FOR AN ENGINE
Publication number
20160061095
Publication date
Mar 3, 2016
Caterpillar Inc.
Andrew J. Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
FUEL SUPPLY SYSTEM FOR ENGINE
Publication number
20160053672
Publication date
Feb 25, 2016
Caterpillar Inc.
Andrew J. Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
PRECHAMBER ASSEMBLY FOR AN ENGINE
Publication number
20160053667
Publication date
Feb 25, 2016
Caterpillar Inc.
Andrew J. Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
PRECHAMBER ASSEMBLY FOR ENGINE
Publication number
20160053668
Publication date
Feb 25, 2016
Caterpillar Inc.
Andrew J. Loetz
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS